tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 # description: trace_marker trigger - test histogram with synthetic event against kernel event
   4 # flags:
   5
   6 fail() { #msg
   7     echo $1
   8     exit_fail
   9 }
  10
  11 if [ ! -f set_event ]; then
  12     echo "event tracing is not supported"
  13     exit_unsupported
  14 fi
  15
  16 if [ ! -f synthetic_events ]; then
  17     echo "synthetic events not supported"
  18     exit_unsupported
  19 fi
  20
  21 if [ ! -d events/ftrace/print ]; then
  22     echo "event trace_marker is not supported"
  23     exit_unsupported
  24 fi
  25
  26 if [ ! -d events/sched/sched_waking ]; then
  27     echo "event sched_waking is not supported"
  28     exit_unsupported
  29 fi
  30
  31 if [ ! -f events/ftrace/print/trigger ]; then
  32     echo "event trigger is not supported"
  33     exit_unsupported
  34 fi
  35
  36 if [ ! -f events/ftrace/print/hist ]; then
  37     echo "hist trigger is not supported"
  38     exit_unsupported
  39 fi
  40
  41 echo "Test histogram kernel event to trace_marker latency histogram trigger"
  42
  43 echo 'latency u64 lat' > synthetic_events
  44 echo 'hist:keys=pid:ts0=common_timestamp.usecs' > events/sched/sched_waking/trigger
  45 echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)' > events/ftrace/print/trigger
  46 echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
  47 sleep 1
  48 echo "hello" > trace_marker
  49
  50 grep 'hitcount: *1$' events/ftrace/print/hist > /dev/null || \
  51     fail "hist trigger did not trigger correct times on trace_marker"
  52
  53 grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
  54     fail "hist trigger did not trigger "
  55
  56 exit 0